Sampling apparatus



mwmsn R. L. BRUNER.

SAMPLING APPARATUS.

APPLICATION FILED JULY 6 1920.

Patented May 30, 1922..

2 SHEETS-SHEET 1.

WITNESSES l/VVE/VTOI? ak m v iZQ- 25 A TTORNEYS R. L. BRUNER.

, SAMPLING APPARATUS. APPLICATION FILED JULY 6. 1920.

1,41 8,065. Patented May 30, 1922.

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Application filed. July 6, 1929.

T 0 all 10 7mm it may concern:

Be it known that I, Bonner LEE BRUNER, a citizen of the United States, and a resident of Corinth, in the county of Alcorn and State of Mississippi, have invented certain new and useful Improvements in Sampling Apparatus, of which the following is a. specification;

The present invention relates in general to improved sampling apparatus, and more particularly to an improved sampling apparatus especially adapted for use with conveyors or similar conduits.

The object of the invention is to provide an improved sampling apparatus of this character which when associated with the conveyor or similar conduit is adapted to automatically obtain a fair average sample of the fluent material which is being carried through the conduit.

Other objects and advantages of the invention reside in certain novel features of construction, combination and arrangement of parts which will be hereinafter more fully described and particularly pointedout in the appended claims, reference being had. to the accompanying drawings forming part of this specification, and in which:

Figure 1 is a front elevational view of the improved sampler, the driving wheel being cut away for the sake of illustration Fi ure 2 is a transverse vertical sectional view on line 2-2 of Figure 1;

Figure 3 is a plan view of the invention; and

Figure 4 is a. detail front elevational view of the rotatable disk.

Referring to the drawings, it will be seen that the invention contemplates a conveyor or similar conduit designated 5. The conduit is adapted to contain the material which is to be sampled, the material flowing through the conduit in the direction indi-' cated by the arrows in the drawings. At a suitable pointthe side wall of the conduit isprovided with an opening.

A closure plate 7 extends overthe opening anditsvertical side edges are provided with offset flanges 8 which extend over the contiguous portions of the exterior wall of the conduit. Fastening means, such as bolts and nuts 9, extend through and cooperate with the flanges to secure the closure plate in position. The offset flanges 8 permit the inner surface of the closure plate to be dis- 7 Specification of Letters Patent.

Patented May 30, 1922.

Serial No. 394,379.

the sampling orifice and is adaptedto direct the material flowing through the conduit to, the sampling orifice, as clearly shown in Figure 3.

A rotatable disk 14 is arranged upon the outer face of the closure plate and i'sprovided with a sampling orifice 15 adapted to periodically register with the sampling orifice 10 of the closure plate or conduit. The disk lt is provided with an offset hub 16 which is fixed .by a key 17 to a rotatableshaft 18. The shaft 18 is carried in a bearing 19 mounted on the outer end of spider arms 20 which have their inner ends fixed, as at 21, to the closure plate. The inner end of the shaft 18 is received in an annular stepped bearing 22. It is to be noted that the. annular recess 16 formed inthe rotatable disk by offsetting the hub 16 embraces and is rotatably mounted upon the annular stepped'bearing 22. A collar 23 is fixed to the shaft 18 and bears against the inner end of the bearing 19 to prevent longitudinal displacement of the shaft. The outer end of the rotatable shaft 18 carries a pulley 24 or the like by which it may be geared to a suitable source of power to effect the rotation of the shaft 18 and the rotatable disk 14:.

The sampling orifice 15 of the rotatable diski adapted to be throttled to vary the quantity of material discharged throughthe sampling orifice when they register. The means provided for this purpose consists of athrottle plate 25 having a crescent curved end 26 adapted to overlie to the desired extent the sampling orifice 15 of therotatable disk. The body of the throttle plate is provided with concentric arcuate slots 27 through which pins 28 carried by the rotatable disk extend. The outer end of the pins receive the adjusting nuts 29 which cooperate with the top surface of the throttle plates to clamp them in position.

In practice, it will be noted that the sampling orifice is disposed in the side wall of the conveyor conduit intermediate the of the rotatable disk being brought into" register only periodically, the material discharged represents a fair average sample of the material which flows through, the conduit. The periodical legistral',,'lo11 of the sampling orifices is automatic and the quantity of the material discharged, may be varied by suitable adjustment of the throttle plate. The frequencyof the discharge may also be varied by changing the degree of rotation imparted to the shaft 18.

The invention finds'a high degree of use fulness in coal and ore mines, cotton seed oil mills, fertilizer plants, flour mills, grain elevators, etc., but it is not restricted to these utilities as it has a wide and broad range of usefulness and is effective wherever it is desirable to obtain a fair average sample of fluent or semifiuent material.

Although I have herein shown and described only one embodiment of my invention, it is to be understood that various changes and modifications may be made herein without departing from the spirit of the invention and the spirit and scope of the appended claims.

I claim:

1. In a sampling apparatus .of the char acter described, in combination, a conduit having an opening in its side wall, a closure plate for said opening, said closure plate having an opening constituting the sampling orifice of said conduit,a bailie arranged on the inner surface of said closure plate adja cent said sampling orifice, a rotatable disk arranged on said closure plate and having a sampling orifice adapted to periodically register with. the sampling orifice of said closure plate, a throttle plate for controlling the sampling orifice of said disk, a retatable shaft carrying said disk, a bearing for said shaft spaced from said closure plate, a stepped bearing for said shaft carried by said closure plate, and means for imparting rotation to said shaft.

2. In a sampling apparatus of the character described, in combination, a conduit having an opening. in its side wall, a closure plate for said opening, said closure plate having an opening constituting the sam pling orifice of said conduit, a rotatable disk arranged on said closure plate and havlng a sampling orifice adapted to periodically reg ister with the sampling orifice of said closure plate, a throttle plate for controlling the sampling orifice of said disk, a rotatable shaft carrying said disk,-a bearing for said shaft spaced from said closure plate and a stepped bearing for said shaft carried by said closure plate, and means for imparting,

rotation to said shaft.

3. In a sampling apparatus of the character described, in combination, a conduit having an opening in its side walls, a closure plate for said opening having marginal offset flanges whereby the inner surface of the closure plate is coplanar with the inner'wall of the conduit, fastening means cooperating with said flanges for securing said plate in position, said closure plate having an open-- ing constituting a sampling orifice for said conduit, a baffle arranged. on the inner surface of said closure plate adjacent said opening, a rotatable disk arranged on the exterior surface of said closure plate and having a sampling orifice adapted to periodically register With the sampling orifice,

of said closure plate, a rotatable shaft carrying said disk, and means for imparting rotation to said shaft. I

4-. In a sampling apparatus of the character described, in combination, a conduit having an opening in its side Walls, fa closure plate for said opening having marginal offset flanges wherebyv the inner surface of the closure plate is coplanar with the inner Wall of the conduit, fastening means cooperating with said flanges for securing saidplate in position, said closure plate having an opening constituting a sampling orifice'for said conduit, a rotatable disk arranged on the ca terior surface of said closure plate and having a sampling orifice adapted to periodically register with the sampling orifice ofsaid closure plate, a rotatable shaft carrying said disk, and means for imparting rotation to said shaft.

5. In a sampling apparatus of the character described, in combination, a conduit having an opening inits side walls, a closure plate for said opening having marginal olf-' set flanges whereby the inner surface of the closure plate is coplanar with the inner wall of the conduit, fastening means cooperating with said flanges for securing said-plate in position, said closure plate having an opening constituting a sampling orifice for said conduit, a rotatable disk arranged on the exterior surface of said closure plate and hav-" ing a sampling orifice adapted to periodically register with the sampling orifice of said closure plate, and means for rotating said disk.

6. In a sampling apparatus of the char acter described, in combination, a conduit having an opening in its side walls, a closure plate for said opening having marginal oifset flanges whereby the inner surface of said closure plate is coplanar with the inner Wall of the conduit, said closure plate having an opening constituting a sampling orifice for said conduit, a baflie arranged on the inner surface of said closure plate adjacent said opening, and means for periodically covering and uncovering said sampling orifice.

7. In a sampling apparatus of thecharacter described, in combination, a conduit having an opening, a closure plate for said opening, said closure plate having an open ing constituting the sampling orifice of saidconduit, a rotatable disk arranged on the outer surface of said closure plate, and having a sampling orifice adapted to be periodically arranged with the sampling orifice of said closure plate, a rotatable shaft carrying said disk, and means for imparting rotation to said shaft.

8. In a sampling apparatus of the character described, in combination, a conduit having a sampling orifice therein, a rotata-' ble disk having a sampling orifice adapted to periodically register With the sampling orifice of said conduit, means for throttling the sampling orifice of the rotatable disk including a throttle plate having a crescent-shaped edge adapted to overliethe sampling orifice and concentric arcuate slots in its body portion, and means extending through the slots for clamping the throttle plate in adjusted position, a rotatable shaft carrying said disk, and means for imparting rotation to said shaft.

9. In a sampling apparatus of the character described, in combination, a conduit having a sampling orifice therein, a rotatable disk having a sampling orifice adapted to periodically register With the sampling orifice of said conduit, means for throttling the sampling orifice of the rotatable disk including a throttle plate having a crescentshaped edge adapted to overlie the sampling orifice and concentric arcuate slots in its body portion, and means extending through the slots for clamping the throttle plate in adjusted position.

ROBT. LEE BRUNER. 

